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OOP theory vs practice
(lemmy.ml)
Post funny things about programming here! (Or just rant about your favourite programming language.)
Functional Programming Theory: 500 pages of lambda calculus and endofunctors
Functional Programming Practice: Quicksort
There's plenty of real world code written in functional languages. Also, this idea that FP is somehow more complex is complete nonsense. Lisp family are some of the easiest languages to learn.